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@dites :gistenstmt @ffice i J. WARREN GUSTER, OF TRAPPE, PN N SYLVAN IA.

Lettera Patent No. 70,817, dated November 12, 1867.

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TO ALL WHOM IT MAY CONCERN: I

Be it known that I, J. WARREN CUsTER, of Treppe, in the county of Montgomery, and in the State of Pennsylvania, have invented certain newland useful Improvements in Coal and Ash-Sifters; and-dothereby declare that the following is a fnlLYeIear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon. l

In the annexed drawings, making part of this specific-ation, A represents a metallic box, and B its closetting cover, both of which are provided with ears or handles C C, by means of which they are lifted. D represents a wire sieve, which is u1u-de in form and size to t snugly within thebox A. Upon the inside of the box are formed or secured stationary `iaws E E, which receive between them the'periphcry or the edges of the sieve for holding or supporting it within the box. G represents a spring, which is also secured within the box, for

assisting in securing the sieve, and which admits of its being removed at pleasure.

To use this sifter, the coal-ashes, with the cinders, &c., are poured into the boxA, (the sieve'baving been {rst removed.) The sieve is then replaced and confined by spring G and jaws E. 'The lid B 'is placed upon the box, and then, the Whole being turned over or upside down, the operator, taking hold of the ears or handles, proceeds to sift in the usual manner, either by a quick vibratory or rotarymotion. After separating the ashes from the coals by this sifting process, the box is placed upon the Hoor or earth, and the dust is allowed to settle.

The lid B being down, the ashes and dust settle in the said'lid, while the coal remains upon the sieve within the box. The operator lifts up the box by its ears, removes the coal, and -the ashes being carried away in the lid, the sifter is ready for further operation. Instead of a separate and independent box, I may use the ash-box of the ordinary stove, having a sieve fitted to'it inthe manner herein described, and having it provided with a close-fitting cover.

I am aware that a circular-box siftef, with'a perforated plate for a. sieve, has been known before. What I claim, is l l The arrangement ofthe wire sieve D, having a wire around its circumference, when secured within a circular box, A, by means of thejaws E E, formed in said box, and the spring G, in the manner and for the purposes set forth. V l

In testimony that I claim the foregoing, I have hereunto set my hand and seal ,this 21st day of June, 1867.

` i v J. WARREN CUSTER. Witnesses:

N. H. LoNeABoUeu, FRANK LIvENeooD. 

